xprt_rdma_connect_worker(9)

💖 xprt_rdma_connect_worker(9) — the kernel API manual, but make it make sense 🎀

okay bestie, so this one lives in the Kernel API Manual (yes, the kernel has a manual, she's iconic like that) and it's all about setting up an RDMA connection in the background — like when you order food and then go about your life instead of staring at the app. literally that energy. ✨

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✨ NAME ✨

xprt_rdma_connect_worker — establish connection in the background 🦋

like, the whole point. connect, but off to the side, no drama in the main thread.

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🌸 SYNOPSIS 🌸

void xprt_rdma_connect_worker (struct work_struct *work );

that's it. that's the whole signature. she's short and she knows it. 💅

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🎀 ARGUMENTS 🎀

• work — worker thread context 🧵 (this is your little work-item carry-on bag: everything the worker needs to know it's this job, bestie.)

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👑 DESCRIPTION 👑

so here's the vibe check on what actually goes down:

The requester holds the xprt's send lock 🔒 — not in a toxic way, in a "nobody touch this transport while we're mid-connection, thanks" way. That lock is literally there to prevent activity on this transport while a fresh connection is being established. no cap, that's the whole reason.

Meanwhile all the RPC tasks are just… sleeping 😴 on the xprt's pending queue, waiting for the connect to complete. like a group chat where everyone's left on read until the link comes up. then they all wake up and start spamming requests. iconic behavior honestly. 🫶

ngl the key thing to internalize: connection setup happens in the background, the send lock guards the transport during it, and the queued RPC tasks are asleep the whole time. 💜

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🌈 SEE ALSO 🌈

• Kernel file ./net/sunrpc/xprtrdma/transport.c — the source, go read her, she's right there 📂
• xprt_rdma_inject_disconnect(9)
• xprt_rdma_destroy(9)
• xprt_setup_rdma(9)
• xprt_rdma_close(9)
• xprt_rdma_set_port(9)
• xprt_rdma_timer(9)
• xprt_rdma_set_connect_timeout(9)
• xprt_rdma_connect(9)
• xprt_rdma_alloc_slot(9)
• xprt_rdma_free_slot(9)
• xprt_rdma_allocate(9)
• xprt_rdma_free(9)
• xprt_rdma_send_request(9)

that's the whole friend group. they all show up to the function together. slay. 🔥

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okay and finally — the little footer moment 💌: this whole page comes from ./net/sunrpc/xprtrdma and it's dated October 2026. save the date, bestie 🍓. go forth and connect in the background. periodt. 💅✨